Codex
OpenAI's agentic coding tool, terminal and cloud.
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15 articles that feature Codex
Every piece below works with Codex hands-on — pricing, real setup, where it wins, where it falls short, and the alternatives worth weighing.
Articles featuring Codex
Grok vs ChatGPT: Which AI Is Actually Better in 2026?
A current, price-honest head-to-head of Grok 4.3 and ChatGPT: real 2026 pricing, the axis that decides, and which to pay for.
Claude vs ChatGPT (2026): Which One to Pay For
Claude Opus 4.8 vs GPT-5.5, head to head: coding, writing, pricing, images. The clear verdict on which AI to actually pay for in 2026.
10 Best AI Proposal Software 2026 (and the Per-Seat Tax)
I priced 10 AI proposal tools at four seats. PandaDoc Business runs $2,352/yr; Better Proposals runs $624 for the same job. The real math.
Codex folded into the ChatGPT org: my roadmap-risk test
OpenAI folded Codex, ChatGPT and the API into one org under Brockman. Codex is now a super-app wedge, not a standalone tool. My roadmap-risk test.
Notion Custom Agents: $340/month shock — cap or rebuild?
The real burn math after Notion metered Custom Agents at $10 per 1,000 credits: a client OS's three-way decision and the accounting recaps skip.
Opus 4.7 +27%, GPT-5.5 2x: The Harness That Held
Three vendors quietly raised AI cost in one week. Which mechanism hits your stack, and the cache, router and spend-cap architecture that absorbs it.
Grok Build: cheapest model, $300/mo door — the operator math
Grok Build's cheap model is gated behind a $300/mo tier: the subscription-vs-API math for an operator already on Claude Max, and why it waits.
Mercury OCC Approval: My 5-Venture Banking Decision
Mercury received OCC conditional approval for Mercury Bank, N.A. on April 28, 2026, two weeks after acquiring Central, an AI-native payroll platform. Senior founders running multiple entities now have to decide whether to consolidate…
Claude Agent SDK on a Separate Meter June 15: The Token Math
On May 13 Anthropic announced that starting June 15, 2026, programmatic Claude usage (Agent SDK, `claude -p`, Claude Code GitHub Actions, third-party apps) draws from a separate credit pool instead of subscription limits. Pro gets $20,…
Codex Mobile Preview: Async Coding as the Solo-Op Default
On May 14, 2026, OpenAI shipped a preview of Codex inside the ChatGPT mobile app on iOS, iPad, and Android, available on all plans including Free and Go. The phone becomes a thin controller over a Codex desktop session running on a paired…
Codex in ChatGPT mobile: async coding for solo operators
OpenAI shipped Codex inside ChatGPT mobile on May 14, free tier included. The phone is now the agent control plane for solo Mac operators.
Notion Developer Platform: the August 11 credit cliff
On May 13, 2026, Notion launched its Developer Platform — Workers (hosted code runtime), External Agents with partner integrations for Claude Code, Cursor, Codex and Decagon, an External Agent API for custom agents, a CLI called `ntn`,…
OpenAI's Free Codex Offer: The 60-Day P&L That Said No
A first-person operator P&L for solo founders weighing OpenAI's May 13 promotion against staying on Anthropic Max with the new +50% weekly Claude Code limit through July 13. Walks the actual switching cost in engineering hours, the…
Claude Code +50% Weekly Cap: Migration Math for July 13
On May 13, 2026, Anthropic raised Claude Code weekly limits 50 percent through July 13 for Pro, Max, Team, and seat-based Enterprise accounts. The same day, OpenAI offered two free months of Codex to teams who migrate inside 30 days. The…
v2.1.141 Fixed My 3 Claude Code Hook Bugs
A practical upgrade guide for senior devs already running Claude Code hooks in production. Walks through the three concrete fixes that landed in v2.1.139 to v2.1.141 (terminalSequence for headless notifications, args:string[] for…
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